Field or hunting flask.



V W 7 7 lATENTED MAY 8,1906. 3. BERGER a; A. ASQHEMRBMBR.

FIELD '01: HURTIRG PLASK.

APPLIOATIGH FILED BEFTi 3, 1904.

W E N m h f if WITNESSES.

the

PATIENT OFFICE.

REINHOLD suaosa AND ALBERTASCHENBRENNER', or BERLIN,

- GERMANY.

FIELD on HUNTING F'LASK.

Specification of Letters Patent.

{scented Key 8. 1906.

Application filed September 8 1804. Berlal Ho. 223,25.

To call whom it may concern: I

Be itlinown that we, REINHOLD Bunsen and ALBERT Ascl!ENBRENNER,,sub3'ccts of of Prussia, German Emperor, maiding in erlin, Germany, have invented certain new and useful Improvements in Field or Hunting Flasks, (for which we have ob tained a patentin Great Britain, numbered 4,421, A. l). 1904, and in France, numbered 3 40,6273 andwe do hereby declare that the followin isa full; clear, and exact descriptionof t e saute.

This invention relates to field or hunting flasks for the conveyance and storing of liquids, more particularly of beverages. Ves':

of a similar kind are already knowrfand sels have been used for other purposes; but they have not the characteristic shape of our improved bottle and are not provided with a protective jacket.

Another feature ofour invention consists in it the fact that a layer ofheat-insulating material is arranged in peculiar manner between .the two'glass walls in order to prevent the bottom, but at ofthe glass by concussions or the like at t at pari where the inner wall of the bottle is connecl ed with the outer wall-that is to say, at the neck of the bottle. Special novel means for this purpose will be described hereinafter.

breakini Another feature of the invention consists.

in the fact'that the tubes for evacu atin the bottle are not arranged at the center 0 the the'side thereof, soithat it can be more eil'ectuall protected from injury and the-t the bott e and its jacket can 'be given a more'suitable sha we.

invention is illustrated in the annexed drawings, in which similar letters indicate parts.

similar or equivalent view ofone form-of the Figure 1- zsa side improved bottle; Fig. 2, a partial vertical section throu hthe central axis of another form thereo through F line A B of .3. V

The field or hunting flask shown in Figs. 1 and 2 comprises a substantially cylindrical inner glass receptacle a, somewhat constrict cd at the hook, and an outer glass receptacle Fig. 3, a vertical section l, and Fig 4 a section on the b, which is also somewhat constricted at the neck. 'lhcse two receptacl fused to other at the neck surface raving been coated es are carefully the entire inner with a mercury ranged and others vertical! Finally, we desire layer a. The air between the receptacles is then evacuated or exhausted through tubular projections d in the foot of the outer roceptacle, which are then sealed. Round the neck of the bottle is arranged an annular cushion or protector e, and the foot or bottom oi the bottle is inclosed in a cup-shaped cushion or Krotectorf, of suitable elastic materialsuc as cotton, wool, asbestos, or the like or of colophony, shellac, sealing-wax, or other suitable rigid material. The bottle is inclosed in a substantially c lindrical metal case g, to which are soldered our metal hows it, formin eyes. The under part of the case 9 is GlOSBt by a cup-shaped bottom h, which is soldered or fixed in any other suitable mannor to the 'case 9. Through the bows h a strap '5 can be drawn to serve for carr ing the bottle, as usual with field-flasks. l hto the mouth of the bottle a cork or other stop er 1' can be inserted, and a removable inverted cup I can be pushed over the neck. This cup can be held in place in any suitable manner.

3 disks or plates n n; of asbestos-board or other smta le heat-insulating material, are

that the latter mutually supplort each other. Some of the said plates are orizontaily arplates are supported by lire rings a a fixed to a number of vertical wires 0, whic 1 sn port the horizontal plates' 'm andm". -T e pper ends of the wires 0. are bent over tfie curved partof the inner re'ce tacle a at t e neck of the bottle and are fixed to a. wire rin (indicated by dotted lines in the drawings; and fastened round the neck of said inner rece 'tacle; e do not restrict our claims to the forngof bottle consisting of two glas receptacles a and I; which is shown in thedrawmgs, but also claim all other forms in which the bottle It must also -be noted recs tacle b can be inclosed in a V lost or or other suitable material-as, for-in; stance,- of paper lGBlillBl, woven or lcnitted fabric, and the like. to point out that thepraotical value of our invention consists in the fact that the liquid contained in the improved bottle remains formany, hours at the same like.

arran ed between the receptacles a and so y. The vertical.

In the form of construction shown in Fig.

could be usedas a field or hunting flask or the that the; cute;

pspier-mech, artificial I v temperature as that which it had whe n poured into the bottle. Thus, for-instance, u workinginan who fills his bottle in the morning with hot coffee or milk can kee the liquid till the evening, when it will st] 1 0c host. It will thus easily be \Ju'ideretood that the bottle can with great advantage be used specially in the field or when hunting.

Having now particularly described and uscerteined the nature of our said invention and in whet manner the same is to bc performml, we declare that what we claim is--- A flask, eonrn'ising separated receptacles connected at t ieir necks arid inelosing n vaeuunechem'ber between their bodies, heatinsulating members ennularly disposed in the chamber, and means embracing the neck of the inner receptacle and holding the said members 'in position, sullsteintzeily as described.

2. A flask, eoinprising separated reeeptm cles connected at their necks and inciosiiig a vacuum-chamber between their bodies, horizontal and vertical heat-insulating members ehnularly disposed in the chamber, and a wire structure suspended from the neck of the innei' receptacle and hoiding the said members in position, substantially as described.

3. A flask, comprising an inner receptacle,

and an outer receptacle connected thereto at the neck and presenting in conjunction with the first u vacuum-chamber; and having two sealing-teats one at each side of the b'ottom heelt-insuletin members annulerly disposed in'the clmmber, and means for holding the said members in position, substantially as described.

4. A flask, cmnl'irising an inner receptacle, and an outer rweptecle connected thereto at the neck. and presenting in conjunction with the first e' ztcuum-cimmberand having two hP- Lliflfl tliit-S one at each side of the button beeches-mating members ennu'lerly disposed in the chmnber, means for holdin the sitid members in position, ejepketinc osin the o'uter receptacle, and a filling interpose be- I tween the miter rece itaclc end its ticket at the neck and foot, sn )stantially as escribed.

in witness whereof we have herelinto signed our names, this 19th day of August, 1904, in the presence of two subscribing witmesses.

REINHOLD BURGER. ALBERT ASCIIENBRENNEIL Wi ti'iesses FRANZ ScnwENTERLnY, WOLDEM AR HA err. 

